Postgres
- postgres版本:16(测试可用)
- docker 安装
插件安装
- clickhouse_fdw: https://github.com/ildus/clickhouse_fdw
安装命令
git clone [email protected]:ildus/clickhouse_fdw.git
cd clickhouse_fdw
mkdir build && cd build
cmake ..
make && make install
deb12换源
cat > /etc/apt/sources.list << EOF
deb http://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm main contrib non-free non-free-firmware
deb-src http://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm main contrib non-free non-free-firmware
deb http://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware
deb-src http://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-updates main contrib non-free non-free-firmware
deb http://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-backports main contrib non-free non-free-firmware
deb-src http://mirrors.tuna.tsinghua.edu.cn/debian/ bookworm-backports main contrib non-free non-free-firmware
deb http://mirrors.tuna.tsinghua.edu.cn/debian-security bookworm-security main contrib non-free non-free-firmware
deb-src http://mirrors.tuna.tsinghua.edu.cn/debian-security bookworm-security main contrib non-free non-free-firmware
EOF
apt update
安装编译器
docker镜像里没有必要的编译工具,make 执行不了
make 过程中陆陆续续提示缺少依赖,按提示安装包即可
大概安装了以下包,仅供参考
apt-get install devscripts build-essential cmake unixodbc-dev postgresql-server-dev-16 pkg-config libcurl libcurl4-openssl-dev uuid-dev
最终,make install 会把编译好的插件发送到指定位置,直接连接pg加载即可
加载插件
CREATE EXTENSION clickhouse_fdw; -- 加载插件
导入外部表
CREATE SERVER clickhouse_svr FOREIGN DATA WRAPPER clickhouse_fdw OPTIONS(host '192.168.30.101', port '8123', dbname 'my_ch_db', driver 'http'); -- 连接clickhouse
CREATE USER MAPPING FOR CURRENT_USER SERVER clickhouse_svr OPTIONS (user 'default', password ''); -- 用户映射,clickhouse的连接密码
IMPORT FOREIGN SCHEMA "my_ch_db" FROM SERVER clickhouse_svr INTO public; -- 把clickhouse模式导入pg
注意IMPORT SCHEMA会加载clickhouse库名<my_ch_db>下的所有表到postgres的public模式
可以在pg的外表中查看到
删除外部表
drop FOREIGN table if exists "soc_filtered"; -- 删除所有外部表
drop user mapping FOR CURRENT_USER server clickhouse_svr; -- 删除用户映射
drop server clickhouse_svr; -- 删除链接